<!DOCTYPE html>
<html lang="zh">
  <meta charset="utf-8">
  <head>
    <title>GREET</title>
    <link rel="stylesheet" href="popup.css">
  </head>

  <body>
    <button class="btn" id="webMessage">test</button>
    <button class="btn" id="actionGreet">开始打招呼</button>
    <button class="btn" id="cancelGreet">取消打招呼</button>

    <script src="js/popup.js"></script>
  </body>
</html>
